blochGrueneisen¶
- Stoner.analysis.fitting.models.e_transport.blochGrueneisen(T, thetaD, rho0, A, n)[source]¶
Calculate the BlochGrueneiseen Function for fitting R(T).
- Parameters:
T (array) – Temperature Values to fit
thetaD (float) – Debye Temperature
rho0 (float) – Residual resisitivity
A (float) – scattering scaling factor
n (float) – Exponent term
- Returns:
Evaluation of the BlochGrueneisen function for R(T)
Example
"""Test Weak-localisation fitting.""" from copy import deepcopy from numpy import linspace, ones_like from numpy.random import normal from Stoner import Data from Stoner.analysis.fitting.models.e_transport import ( blochGrueneisen, BlochGrueneisen, ) T = linspace(4.2, 300, 101) params = [265, 65, 1.0, 5] params2 = deepcopy(params) G = blochGrueneisen(T, *params) + normal(size=len(T), scale=5e-5) dG = ones_like(T) * 5e-5 d = Data( T, G, dG, setas="xye", column_headers=["Temperature (K)", "Resistivity", "dR"], ) d.curve_fit(blochGrueneisen, p0=params, result=True, header="curve_fit") d.setas = "xy" d.lmfit(BlochGrueneisen, result=True, header="lmfit") d.setas = "xyeyy" d.plot(fmt=["r.", "b-", "g-"]) d.annotate_fit(blochGrueneisen, x=0.65, y=0.35, fontdict={"size": "x-small"}) d.annotate_fit( BlochGrueneisen, x=0.65, y=0.05, fontdict={"size": "x-small"}, prefix="BlochGrueneisen", ) d.title = "Bloch-Grueneisen Fit"